Signal-transmitter



(No ly I odel.) 2 Sheets-Sheet 1.

J. 0. WILSON.

SIGNAL TRANSMITTER.

No. 395,102. Patented Dec. 25, 1888.

I z Ewen/Z27 N. PETERS. Pnommhn m her, wmmn lm 04 C.

irnn dramas Parana Oriucn.

JOHN C. \VILSON, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE MUNICIPAL SIGNAL COMPANY, OF PORTSMOUTH, NEIV HAMPSHIRE.

SIGNAL.=TRANSMlTTER.

SPECIFICATION forming part of Letters Patent No. 395,102, dated. December 25, 1888.

Application filed September 3, 1388f Serial No. 284,402. (No model.)

To all 2071/0122 it may concern: cupying a vertical position, and having fixed Be it known that I, JOHN C. WILSON, of thereon several signal or circuit-changing Boston, county of Suffolk, State of Massachuwheelsas 2 3 i 5, &c.-there being thirteen setts, have invented an Improvement in Sigwheels herein shown. A stop or check wheel,

5 nal-Transmitters, of which the following dea, is fixed to the shaft a, and also fixed to scription, in connection with the accompany said shaft is a pinion, (1 (see dotted lines, ing drawings, is a specification, like letters on Fig. 2,) and a gear, (L The pinion a is en the drawings representing like parts. gaged and driven by a toothed wheel, a, fixed This invention has for its object to conto a shaft, 19, which is connected by a pawl 10 struct an automatic signal-transinitterwhereand ratchet, Z) 19 with the mainspring 19 by any one of a large number of code-signals from which it derives its rotation. The hand may be automaticallytransmitted. Q crank 'c or winding-arm is also fixed to the In accordance with this invention a series 5 shaft or sleeve carrying the ratchet-wheel b of signal-wheels or other signaling-surfaces so that as the said arm. is swung from its nor- I 5 are arranged to co-operate with a series of inal into its extremeabnormal position, as repcontact-pens or equivalents, one contact-pen resented by dotted line, Fig. 2, the ratchetbeing provided for each signal-wheel or sigwheel will be rotated and the spring wound, naling-surface. Each signal-wheel is herein and as the arm returns to its normal position shown as provided with a single projection, the wheel o revolves. The gear a engages a 20 and the wheels are arranged upon a single pinion, a, fixed to a shaft or arbor, a, upon rotatable shaft, so that the projections will 631- which shaft is also fixed the escape-wheel a7,

tend spirally around the shaft, or so as to designed to co-operate with any suitable palform substantially a complete series around let. This train of gearing and spring forms the shaft. The contact-pens normally lie out the motor mechanism by which the shaft a is of the path of movement of the signaling or revolved.

cont-acting portions of the signal-wheels, hut Each (1ircuit-changing wheel 2 it i :5, &c.,

are arranged to be thrown into such path of has a single projection or contact portion, and

movement to engage the said signal wheels the several wheels are arranged upon the shaft by a suitable sclecting-cylinder, which is pro- (1 so that the projections of the successive 8o 30 vided upon its surface with studs or proj ecwheels occupy diiiferent positions, they being tions arranged to move two or more of the herein shown as arranged spirally. The sepens into engagement with the respective ries of contact-pens d are provided, there bewheels when in different positions. The se .ng one pen for each circuit-changing wheel. lecting-evlinder is tixcd to a shaft, to which The contact-pens, as herein shown, normally 35 is also fixed a pointer or arm which moves lie out of the path of movement of the conover or co-operates with a dial. A suitable tact portions of the said wheels, and are centering device is provided for the selecting 1 adapted to be moved to enter such path of cylinder, and a motor is employed to revolve j movement by a selecting-cylinder, f, fixed to the signal-wheels. i a shaft, f, journaled in the inclosing-case;

o Figure 1 shows in plan view a multiple sig- The surface of the cylinder fis provided with naltransmitter embodying this invention; i studs or projcctions-such, for instance, as 2, a similar view to Fig. .1, the dial and bestillustratedin Fig. l-theylMing arranged point-er being removed; Fig. 3, a side olovain rows extcilding from end to end of thecyltion of the transmitter shown in. Fig. l, the inder, but being placed only at such points as 45 inclosing-casebeingshown in section; Fig. l, to bear upon certain pens when moved into a detail of the selocting-cylinder, and Fig. 5 engagementtherewith.

arranged on. a shaft.

The inclosing-casc A is of suitable shape to 50 properly inclose the operating parts. The shaft to is journaled in the inclosing-case, oc-

or graduated, over which moves a pointer, 13, which is fixed to the shaft f and employed IOO as a device to move the selecting-cylinder.

The circuit-changing wheels and contacta detail showing several of the signal-wheels A dial, 9, is provided, suitably marked oft i i l pens form the circuitchanging device, and for the different signals different combinations of pens are moved into position to co-operate with the said wheels. For exam ple, when the pointer 12 is moved to the point on the dial 116, the vertical row of studs or projections a (see Fig. 4) will bear upon the pens, and as the shaft a is revolved the wheels 2 4 6 7, &c., will co-operate with the pens and thereby effect the changes in the condition of the circuit. By this form of signal-transmitter a very large number of signals may be transmitted with but a small number of circuitchanging device, and a single dial and pointer employed. The signal selecting-cylinder will have any suitable form of centering device.

In United States Patent No. 320,03 dated June 16, 1885, a signal-transmitter is shown presenting a series of signal-wheels mounted upon a shaft, a series of pens, and a selectingcylinder; and such combination of elements I do not herein broadly claim.

I claim 1. In a signal-transmitter, a series of circuit-changing wheels, each having a single contact portion and arranged to occupy different relative positions on the shaft, and a series of contact-pens for the circuit-changing Wheels, combined with a selecting-cylinder having thereon studs or projections arranged in longitudinal rows, each row having two or more studs or projections to move two or more of the contact-pens into co-operation with the said circuit changing wheels at a time, substantially as described.

2. In a signal-transmitter, a series of circuit-changing wheels, each having a single contact portion and each arranged to occupy a diti' erent relative position, and motor mechanism for revolving said circuitchanging wheels, and a series of contact-pens for the circuit-changing wheels,- combined with a single selecting-cylinder having thereon studs or projections arranged in rows extending from end to end of the cylinder and adapted to move different combinations of pens into position to co operate with the said circuitchanging wheels, a pointer, and a dial, substantially as described.

3. In a signal-transmitter, a series of circuit-changing wheels and a series of contactpens for the circuit changing wheels, combined with a selecting-cylinder having there on longitudinal rows of studs or nojections, each row comprising two or more studs differently placed and arranged to move two or more of the contact-pens into co-operation with the said circuit-changing wheels at a time, substantially as described.

In testimony whereof I have signed my nam e to this specification in the presence of two subscribing witnesses.

JOHN (1. WILSON.

lVitnesses:

G. W. GREGORY, F. L. EMERY. 

